The knee brace can be removed at night. Knee supports are mainly used for postoperative rehabilitation of the knee, such as post meniscus surgery, post knee release surgery, post arthritis surgery or post fracture surgery. They are also used in neurological rehabilitation, such as poor control of the knee after hemiplegia, and can be worn to assist in the control of the knee. Prolonged wearing of the brace on the joint is likely to lead to localized stiffness, poor blood circulation and muscle atrophy. Wearing the brace during the day can protect the knee joint, and if the knee joint is at rest at night, it can be worn without it, which is more helpful for the recovery of joint function.